Recent forecasts indicate an ongoing European heatwave, with high-pressure systems and warm air advection maintaining elevated overnight temperatures across northern France. This has positioned 19–21°C as the dominant market outcomes for Paris’s minimum on August 5, several degrees above the long-term August average low of 15–16°C. Numerical weather models from Météo-France and the European Centre for Medium-Range Weather Forecasts show limited nocturnal cooling under clear to partly cloudy skies, with urban heat-island effects in the Paris basin further suppressing temperature drops. Traders are weighting these factors heavily, as no significant frontal passage or marine-air intrusion is expected before the 5th, keeping probabilities concentrated on the warmer end of historical ranges while allowing modest uncertainty around exact model consensus.